Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-18 22:36Z
∑_{k=1}^{n} k = n(n+1)/2
∫₀^∞ e^(-r²) dr = √π / 2
384K
det| 11 9 ; 4 12 | = 96
∑_{k=1}^{n} k = n(n+1)/2
163K
∇ × E = −∂B/∂t
∑_{k=1}^{n} k = n(n+1)/2
305K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
57K
5z² + 5z + 0 = 0
det| 3 6 ; 0 4 | = 12
110K
det| 6 6 ; 3 7 | = 24
det| 11 9 ; 0 12 | = 132
300K
2H₂ + O₂ → 2H₂O
det| 9 4 ; 1 10 | = 86
354K
2n² + 3n + 1 = 0